{
  config,
  ...
}:

{
  services.clight = {
    enable = if (config.beancloud.hardware.backlight.service == "clight" && config.beancloud.hardware.macbook) then true else false;
    settings = {
      verbose = true;
      resumedelay = 30;

      inhibit = {
        disabled = false;
        inhibit_docked = true;
        inhibit_pm = true;
        inhibit_bl = true;
      };

      backlight = {
        disabled = true;
        restore_on_exit = true;
        no_smooth_transition = false;
        trans_step = 0.05;
        trans_timeout = 30;
        trans_fixed = 0;
        ac_timeouts = [ 600 2700 300 ];
        batt_timeouts = [ 1200 5400 600 ];
        shutter_threshold = 0.10;
        no_auto_calibration = false;
        pause_on_lid_closed = true;
        capture_on_lid_opened = true;
      };

      sensor = {
        ac_regression_points = [ 0.0 0.15 0.29 0.45 0.61 0.74 0.81 0.88 0.93 0.97 1.0 ];
        batt_regression_points = [ 0.0 0.15 0.23 0.36 0.52 0.59 0.65 0.71 0.75 0.78 0.80 ];
        devname = "";
        settings = "";
        captures = [ 5 5 ];
      };

      keyboard = {
        disabled = false;
        timeouts = [ 15 7 ];
        ac_regression_points = [ 1.0 0.97 0.93 0.88 0.81 0.74 0.61 0.45 0.29 0.15 0.0 ];
        batt_regression_points = [ 0.80 0.78 0.75 0.71 0.65 0.59 0.52 0.36 0.23 0.15 0.0 ];
      };

      gamma = {
        disabled = true;
        restore_on_exit = true;
        no_smooth_transition = false;
        trans_step = 50;
        trans_timeout = 300;
        long_transition = true;
        ambient_gamma = false;
      };

      daytime = {
        sunrise = "6:30";
        sunset = "20:30";
        event_duration = 1800;
        sunrise_offset = 0;
        sunset_offset = 0;
      };

      dimmer = rec {
        disabled = false;
        no_smooth_transition = [ false false ];
        trans_steps = [ 0.01 0.08 ];
        trans_timeouts =
          let
            # calculates a duration for each step between
            # full brightness and the dimmed percentage
            formula = duration: target: step: builtins.floor (duration / ((1 - target) / step));
          in
        [
          (formula 2000 dimmed_pct (builtins.elemAt trans_steps 0))
          (formula 250 dimmed_pct (builtins.elemAt trans_steps 1))
        ];
        trans_fixed = [ 0 0 ];
        timeouts = [ 30 15 ];
        dimmed_pct = 0.2;
      };

      dpms = {
        disabled = false;
        timeouts = [ 900 300 ];
      };

      screen = {
        disabled = true;
        contrib = 0.2;
        timeouts = [ 5 0 ];
      };
    };
  };
  location.latitude = if (config.beancloud.hardware.backlight.service == "clight" && config.beancloud.hardware.macbook) then 50.856289 else null;
  location.longitude = if (config.beancloud.hardware.backlight.service == "clight" && config.beancloud.hardware.macbook) then 11.464202 else null;
}